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Finding the Fourth Proportional to 127,572.77, 176,072.01 and 73,890.47

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Solution

The fourth proportional to 127,572.77, 176,072.01 and 73,890.47 is: 101,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,572.77 : 176,072.01 = 73,890.47 : x
  2. Step 2: Convert to fraction form
    127,572.77/176,072.01 = 73,890.47/x
  3. Step 3: Cross multiply
    127,572.77x = 176,072.01 × 73,890.47
  4. Step 4: Simplify right side
    127,572.77x = 13,010,043,572.74
  5. Step 5: Solve for x
    x = 13,010,043,572.74/127,572.77
  6. Step 6: Final answer
    x = 101,981.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.